Coin meter attachment for typewriters



Dec. 27, 1949 R. A. GAY

COIN METER ATTACHMENT FOR TYPEWRITERS 4 Sheets-Sheet l flay; I.

v I T ewrizfer 3 Filed Feb. 13, 1946- INVENTOR ROM EA. 6Z4);

ATTORNEY Dec. 27, 1949 R. A. GAY

COIN METER ATTACHMENT FOR TYPEWRITERS 4 Sheets-Sheet 2 Filed Feb. 13,1946 INVENTOR flow EA. 6A);

ATTORNEY Dec. 27, 1949 R. A. GAY 2,492,565

COIN METER ATTACHMENTFOR TYPEWRITERS Filed Feb. 15, 1946 4 Sheets-Sheet5 18 y WW 34 INVENTOR ATTORNEY Dec. 27, 1949 GAY 2,492,565

com METER ATTACHMENT FOR TYPEWRITERS Filed Feb. 13, 1946 4 Sheets-Sheet4 INVENTOR Eon/EA. 6Z4),

ATTORNEY Patented Dec. 27, 1949 COIN METER ATTACHMENT FOR TYPEWRITERSRowe A. Gay, San Diego, Calif.

Application February 13, 1946, Serial No. 647,312

8 Claims.

My invention relates to coin meter attachments for typewriters,particularly auxiliary timer mechanism constructed to control theoperation of typewriters offered for the use of the general public forlimited periods of time and paid for by insertion of a coin in the slot;and its objects are to combine in one greatly simplified unit noveladaptations, modifications and improvements of the coin slide or lever,timer and actuating mechanism, thereby bringing about a new and betterresult and mode of operation than has heretofore been accomplished inthe art; to furnish a new and more effective indicator for setting theunlocked periods during which the typewriter may be operated; to formthe coin slot and lever into two cooperating parts, the mutual action ofwhich is required for setting the timer; to provide a new and moresimple device for making the typewriter inoperative outside of the coincontrolled period, and to render the locking bar reversible in respectto operative contact with the key control rod of the typewriter so as toserve different types of conventional typewriters to which my device maybe secured; to provide a coin box of novel construction to guard againsttampering, and within which the coin and identification plug aresecurely locked; and in general to simplify and cause to be moreefiicient and to rendenmore economical the construction of the severalparts. These and other objects will appear from the various views of thedrawing, and as hereinafter more fully described and set forth.

Attention is hereby directed to the drawing, illustrating a preferredform of my invention, in which similar numerals of designation refer tosimilar parts throughout the several views, and in which Figure 1 .is aplan view, indicating the top of a conventional typewriter, and showingthe table to which said typewriter is attached bin cover, upper end oflocking bar, time indicator, semi circular extending ledge, coin slot,and protruding end of the two-part coin lever;

Fig. 2 is a vertical section on line 2-2 of Fig. .1, looking in thedirection of the arrows and showing the table,'conventional typewriterrest- .ing upon and attached thereto, bin located berod of thetypewriter;

Fig. 8 is an enlarged plan view on line 3-3 of Fig. 2, looking in thedirection of the arrows, and showing the lower deck plate, two part coinlever and cam, auxiliary locking cam, cam follower, rocker arm andlocking bar actuating rod, and adjacent parts;

Fig. 4 is a vertical section on line 44 of Fig. 3, looking in thedirection of the arrows, and showing the bin two part coin lever, cams,time indicator, timer, coin box and. chute, and connecting parts andmechanism, the coin lever being in the position shown in dotted lines inFig. 3, and certain parts being eliminated for better illustration;

Fig. 5 is a transverse section of a detail on line 55 of Fig. 4, lookingin the direction of the arrows, and showing the auxiliary locking cam,

winding timer lever, locking dog and top of timer;

Fig. 6 is a transverse section on line 6-6 of Fig. 4, looking upwardlyagainst the top deck plate in the direction of the arrows, and showingthe locking bar mechanism and auxiliary cam locked and the coin leverwith its two parts in alignment and ready to receive the coin in theslot;

Fig. '7 is the same view as that of Fig. 6, but showing the coin leverafter being turned ninety degrees to drop the coin into the chuteleading to the coin box, the locking bar mechanism being shown locked bythe coin lever cam, and the auxiliary cam being shown released;

Fig. 8 is also the same view as that of Fig. 6, but showing the coinlever locking bar mechanism and auxiliary cam in unlocked position;

Fig. 9 is a plan view of the locking dog, timer lever in wound position,auxiliary cam and release lever;

Fig. 10 is the same view as that shown in Fig. 9, but showing therelease of the locking dog, and position assumed by the timer lever;

Fig. 11 is a vertical section with certain parts removed on line |l-llof Fig. 3, looking in the direction of the arrows, and showing the coinchute, coin box, marking lug, and adjacent parts;

Fig. 12 is a lateral section on line l2-l2 of -Fig. 11, looking upwardlyin the direction of the arrows, and showing the locking mechanism of thecoin box in open position;

Fig; 13 is the same view as that of Fig. 12, except that the lockingmechanism is shown in closed position;

Fig. 14 is a vertical section on line I l-M of Fig. 13, looking in thedirection of the arrows and showing detail of one of the coin boxlocking cams;

Fig. is a vertical section of the coin box on line 15-45 of Fig. 12,looking in the direction of the arrows, and showing the identifying plugand marking device in cocked position, before the lid of the bin isclosed down; and

Fig. 16 is a perspective view of the release lever which is pivotallymounted between the top and bottom discs of the timer, and has anupwardl extending lip for making releasable contact with a downwardlydepending lug upon the locking dog.

Referring to the drawing, the top [5 of the table I6 is formed with alarge rectangular opening therein, to one side of which is hinged thecover or trap door [8 having on the opposite side I the conventionallock l9 which serves to lock the said cover in position when closed; Tothe top)- of said cover 3 is firmly affixed the typewriter 2|],preferably made inseparable therefrom. The typewriter may be. anyone ofthe conventional types or makes now upon. the marketand has thev usual,key control rod l! or other means, capable upon pressure from one sideorrenderin'g the. keys. of. the typewriter inoperative. To the undersideof said tabl'e l5, immediately beneath said cover, resting, uponsupports I'Ew, I527, securedto. the legs ['50 ofsaid table, and situatedso as to be uncovered by the said cover upon the raising thereof,issecured the bin 2l-, preferably of metal and; normally completelyclosed against access to the interior thereof, except through opening ofsaid. cover.

Below the said control rod ll, and extending upwardly throughan openingin said cover l8, out of the. bin 2!, is the well 22, preferably ofmetal, and having its upper portion protruding above the upper face ofsaidcoverwitlritsmouth adjacent. to said rod 11. At" the bottom of saidwell, two of the walls thereof" are bent at right angles to. form theears 23-, which. being secured to, the. underside of said table top'byscrews 24', serve tov seat said well firmly in position. Also oneofthe walls of said well is extended downwardly to form a hanger orbracket 25, having pivotally mounted thereon the locking bar 26, theupper end. 2] of which, bar projects out of the mouth of the. well. andis positioned to make engaging contactwith the key control rod l i; andthe lower end of which bar has the elongated. slot" 28 formed thereinadjustably to engage with the screwthreaded end of. the post 29 secured"by nuts'cr other means to. said bar. Slidably extending horizontallythrough the opening 30 in said post and secured therein by the threadedpin 30a, is the outer .end of the pitman rod 3!; the longitudinal thrustor withdrawal of which operates to lock or. unlock the locking bar 26inthe man ner hereinafter described.

Preferably the cover IB' is. formed with the rounded ledge .32, anddirectly beneath saidledge and. conforming to the shape thereof isalcove 3'3. formed by an extension of the walls and bottom ofjthe bin2|. To the underside'of sai'd'ledge and-firmly fastened thereto bybolts3t and -are two parallel. disposed; metallic plates, separated bywashers 34a, 35a, and. forming decks 36 and 31. Cut out of the edges. ofthe ledge 32- and decktfi and. extending downwardly therethrough, is thecoin receivingrecess 3B,positioned as shown (see'Fig. 1) at" the rightthereof; and through the lower deck 31 on the left thereof is formed thecoin. discharging recess 39 provided with a finger 49. for interceptingthe coin. and for causing the same to drop into the chute or hopper 41in the manner shortly to be described. The

coin lever 42 is flattened in character and is located in the space 43between said decks, being formed in upper and lower parts; one, theupper part as, which has one end 44a forming a finger hold protrudingoutwardly from said space beyond said ledge, and the other end 441)pivotally connected to the bolt 46 extending across said space andsecured to said decks; and the other, the. lower part 45-, which isshorter than the part 44 and has its outer end formed with thesemicircular coin recess 45a and its inner end 4517 pivotally connectedwith said bolt 46 and extending beyond the. same to form the cam 45c.Extending through the part 44 of the coin lever 42 is. the coin slot 41positioned to register with the recesses 38 and 39 upon the turning ofsaid le- V61; and also. positioned to register with the coin recessv 45aof the part 45. Also as will be observed from the drawing, the part 44is diminished one half in thickness between said slot 41 and its innerend in order to provideregistering sliding contact with the part 45,which is of'said one half thickness throughout. As: a conse quence ofsuch construction, when the :parts 44 and 45 are aligned" andwhen a-coinof the: size of the slot 41 is introduced therein, 'it will. de scendand rest upon the upper surface'of the deck 37, and at the same timewill make registering contactwith the semicircular recess 450, so thatthe two parts 44 and: 45v of: the lever 42 will thereby becomeconnected, and will. turn or pivot as a single unit upon thecommonshaitafford'ed by the bolt4'6,

Preferably the bol-t 4 B: is projected upwardly to form the extension4611, and a vertical. bore made therein for the reception. of the rod45?), thelower end 460' of which is bent. at right. angles to make.engaging contact with an angle plate. tad connected with the:timer-winding lever 13:, and. on the top end. of which is mounted a timeindicator 46c; an opening 46)- in the cover i8 being provided for thereception: of said extension 46b and. said. indicator, and. a. glasswindow 46) being, provided. over said. opening for observation.

Extending through the deck 3T is the arcuate slot 53, and. downwardlyprotruding through such slot is the elongated lug'49 weldedto; orforming an integral connection of, the lower lever part 45, said slot48' and lug 49 being so positioned that upon the turning of the part 45,the said lug will slide freely in said slot, and will permit the" coinlever 42' to be rotated from coin receiving position to coin dischargingposition and back again as shown in the drawing. (8% Figs. 6, 7 and 8.)Welded to-one edge oftheupper part 44 of the lever 42*, or integraltherewith, is the short lug 56 positioned so as: to make engagingcontact with, but not to extend beyond, the edge of the lower part '15of' said lever and through such contact simultaneously to move both saidparts contra clockwise as one toward the coin receiving recess 38'; thesaid lug '56 being adjacent to but not extendingwithin; the. slot. 58.

Immediately below thelower deck 31, and pivotally mounted to turn uponthe shaft belt. :35, is the cam 53, provided with the finger-.52, the

catch 53' and .the tensionspring 54', one endof which-is affixed. to ancar 55 on said cam and the other end of which is fastened to an edge ofthe said deck 37; th said cam being positioned to make engagingcontact-with the cam follower 56", rotatably mounted upon the rocker arm51, which arm is pivotallyconne'cted atone end to the lobe 58 integralwith the saiddeck and has its other end pivotally connected with thehitman rod 3|; a tension spring 39b attached to pin 39 and by a link 300to bracket 65 normally serving to turn locking bar 26 out of engagementwith the key control rod As will be observed in the drawing, the finger52 is shaped and positioned always to extend across the arcuate slot 48,and to engage with and to be pushed by the lug 49 thereover, upon theclockwise movement of the lower part 45. Located to make engagingcontact with the catch 53, is the dog 59 pivotally mounted upon the pin69 secured to the underside of the lower deck 31; the said dog havingintegral therewith the downwardly depending lug 6| and being held inconstant engagement with the adjacent edge of the cam 5| by the spring52, coiled around the pin 60 and in contact with said lug. Positioned,through attachment to tension spring 63a secured to deck 31, to makespring actuated engaging contact with the lug 6|, is the upwardlyextending lip or timer throwout 63 of the release lever 64, operating ashereinafter described to lock the locking bar upon cessation of theunlocked period.

The cam 45c hereinbefore referred to cooperates with the auxiliary cam5| to hold the parts in locked and unlocked position, one cam holdingsuch parts locked while the other cam is in released position. This cam1350 is formed by the extension of the lower part 45 of lever 42, andcam 5| designates the entire finger piece mounted upon bolt 46 below thedeck 3?.

These cams operate independently as a double lock contacting camfollower 55 on rocker arm 51. For example, in Figure 6 of the drawings,cam 5| is shown operating to lock follower 56 while cam 45c is releasedtherefrom; in Figure 7, cam 45c is shown operating to lock the follower51 while cam 5| is in released position; and in Figure 8 both cams areshown out of contact with the follower and the typewriter unlocked.

Secured by brackets 85 to the underside of the lower deck 31 is theconventional timer 68, having the said release lever 64 pivotallymounted between the upper and lower discs 91 and 68, forming the wallsthereof and being provided with the pin 69 extending upwardly therefromthrough the recess ii! in the disc 91; the said pin being so disposed asto make engaging contact with the edge of the cam H and catch l2therein, forming part of the winding lever 13, pivotally mounted uponthe disc 51, and located immediately below the auxiliary cam 5| andturnin upon approximately the same axis as that of said cam. As shown,the winding lever 13 is provided with a finge 14 similar to the finger52 of said cam 5| and is positioned to be aligned therewith and to makecontact with and to be moved by the lug 49 upon the turning of the part45 of the coin lever 42.

In Figs. 11 to 15, I have shown my improved form of coin box 15 andadjacent parts. This box is located within the alcove 33 below the coinhopper 4|, and is seated on the bottom of the bin 2| and located andkept in position by pins 16 detachably engaging with recesses in thebottom of said box. It is made of metal with preferably thick walls, andis provided with a metallic lid 11 having a slot 18 therethroughpositioned to register with the mouth 19 of the hopper 4|; the saidmouth extending downwardly into said box so as to discharge a cointherein. Preferably, both the box 55 and the lid 11 are circular inform, the box having formed inside the top thereof the annular shoulder89, shaped to seat the peripheral edge Ila of said lid 11;

and directly beneath said shoulder is formed in the wall of said box theannular recess 8| located to engage with the locking cams 82 and 83,pivotally mounted upon opposit sides of the lid Tl. Also extendingthrough the lid 11 is the opening 84 shaped to receive and to registerwith the marking lug 85 carried upon bracket 86 depending from andsecured to the lower deck 31; the purpose of said lug being to carryindicia upon the lower end thereof for the purpose of stampin with suchindicia into the material of the plug 81 for identification. This plug81 is inserted within the opening 34 before closing down the cover itcarrying said deck, and which while being impressed by the stamping lug85 upon closing said cover is pushed out of said openin and drops to thebottom of the box 15 (see Fig. 11). Normally the lug 85 thereafterremains in engaging contact with the opening 84 as shown on Fig. 12, butbecomes disengaged from such opening upon unlocking the lock l9 and theraising of the cover i3. For the purpose of locking the coin box 15, Isecure to the underside of the lid thereof, the strap 88 having thedownwardly extending loop 89 forming the passageway 99 shaped to receivethe slide 9|; this strap 98 being provided with a pair of ears 92, 92a,the ear 92 being connected by the tension spring 92b to the locking cam82, and the ear 92a being connected by a metal seal 920 to the lockingcam 83; and both of said ears being also connected to another pair ofears 93 and 93a of slide 9| by tension springs 93b and 930. As shown,the sprin 921) and seal 92c serve to keep the cams constantly inreleasable engagement with the annular recess BI, and the springs 93band 930 serve to pull the slide 9| toward and further into thepassageway 90, such movement of the slide being normally checked byreason of the engaging contact of the lug 95 with the opening 95 in saidslide positioned to be moved to make registration therewith. In additionto the opening 94, the slide 9| is made with the square shaped recess 95in the rear thereof, shaped to make engaging contact with one end of theflat metallic spring 95 secured to the under-side of the lid 11. Toprovide a means of breaking the seal, I preferably construct the lockingcam 83 with knob 9'! mounted outside the lid 1'! and connected with thepivot pin 98 of said cam; the said knob having the opening 99therethrough within which a bar or other instrument may be inserted forturning the cam and breaking the seal.

Preliminary to the normal use by a customer of my improved coin meterattachment, the typewriter 29 is firmly secured to the hinged cover l8and made exteriorly inseparable therefrom; the upper end 27 of thelocking bar 25 being brought into close engagement with the key controlrod I? of said typewriter, and the said cover being thereupon closeddown and locked by the lock I9, as shown in the drawing. At the sametime through the closing of said cover as above set forth, the markinglug 85 has duly marked with identifyin indicia the plug 97, and hasengaged the openings 84 and 94 in the box lid 1'! and slide 9|.Thereupon the parts being positioned and looked as shown in Figs. 1 and2, the apparatus is set for unlocking and freeing of the typewriter foruse during a limited period and for automatic relocking and resettin atthe expiration thereof.

In operating my coin meter attachment when set as above described, theoperator places a ooiniini the:reoess.-; 38 so:- that: onesemi-circular. edge of the coin1engages-with the edge. of. thesemi-circular. recess in-.the lower partv ii-of the 1ever.4-2.. Thenmeans-otthefinger hold 440,- of: the upper: parts 44- and the connectionof the opposite-semiecircular. edge. of.- the coin with the edge oftheop'ening; 41.- a coupling; is.made betweenthe-uppen and lowerl partsof thelever. 42,. whiohiisturned-clockwise to thelimit of its swing+bringingthe.coinreceiving recess 38 and the discharging recess 39 intoregistration: just above the'hopper G i, permitting thecoin to beyieldably engaged by the fingeril-anddropped into saith hopper; Atthe-same time, as the resultof such. movement of lever $2; the lug. t9downwardly depending therefrom engageswiththe endsof fingar 52: of.auxiliary cam: 51-, and-finger i of time winden'caml-l, and carriessthe.ends of saidfingers:v along with said lever; having. the effect of.windingthe timer. 65, and ofssimultaneously'disengaging. th -flip -fitof therelease-lever at from lugtl of dog. 59, thereby. causing the dog5% to be: movedrinwardln under, action of spring 52 and freeingsaid-dog. to :make springengagement. with the edge-of. auxiliary cameisWhen, however, the cam 5.1-! is'rotated: by' the lever 12 to its forwardposition shown-in-Figs. 7 and 8, thedog fifiww-ill slide intoengagementwith-the catch 53; This change of "relationshiprof parts constitutes theaction resultin from the clockwise movementof-lever- 42 andlthefirst-step of the opera-- tion;; the. second: and final step being tomove the lever 42 back'oontra clockwise to'its original position.

Uponthe;lever-Hibeing subjected tosuoh reversesmovement,;the short lug;58'engaging with the upper and lower parts of the'said lever causesthenr'to be returned to: their positionas shown in Fig. 8; theauxiliary'cam= 51 remaining for the timebeing in the-positionto'whichitwas turned on the clockwise movement of said lever; in which positionsboth of: said cams have the low sides thereof in contact'with the camfollower 53', allowing; the locking mechanism undertension?ofxspringBflbtO be and-remain unlocked. Asttheescap'ement in thertimertennwinds, the winding" lever" 13 slow-lyrotatesin a clockwise movementback= torits original starting position during a predetermined: periodof time. Upon the timer'reaching suchposition, the pin 69 of leverfidengages withthe catch-i2 in'the'cam l of said lever launder. tension ofspring 53a, thereby causingthe-lip 63iof=release-lever it to contact thelug SI of dog 59 and (as shown-in Fig; 1'0) to-force said'dogout ofengagement with the-catch. 53 on auxiliary cam- 5|; upon" whichdisengagement as an'immedia-te result the'cam 51- under' tension ofspring as flies; back to its originalnormal'position'shown in Fig. 6,bringing thedogififi againin contact with theedge of thecam'El-a'ndthehigh-side of this cam in contact with cam follower 56; thereby oncemore locking the bar-26 against the-key-control rod H and renderingth'eztypewriter 2B inoperative; Upon inserting another coin in therecess 38, repeating; the steps hereinbefore set'forth, the typewritermaybe: unlocked and? made operative for'another brief period of time:

My invention"mayxbeembodied in other spe-- cificforms. without departingfrom the" spirit or essential. characteristics thereof; The presentembodiment;. as: above? setforth, is therefor to be considered in allrespects as illustrative and not restrictive; the: scopelof; my]invention: being indicated byrth'ee appended; claiinse rather. than bythe above-description, ancLalLchangeswhich come 1 within the. meaning,andl range. of equivae lency of the. claims .are. therefore. intended tobe embracedtherein.

vWhat Iclaim. and desire. to secure by Letters Patent is:

1. In acoin. controlledltiine meter, meansac tuating a lockingbar andsetting.the..meter. timen means with. each unlocking, movement ofsaid.bar, comprising a compound coin. receiving lever,. said lever havingoverlapping, upper. and. lower parts, said lower part. being formedwithaprimarycam, a coin receiving; openingformed'from. said parts, when-theyare insuperimposed align. ment, said upper parti being movableindepend.- ently of said lower. part in one direction. except! when acoin. is insertedinsaid jointly formed coin opening therebycouplingathem together, a. bolt-member pivotally mounting, said. lever be?- itwe'en a pair of-. spaced deckv plates,- saidlowen platehav-ing, anarcuateslottherein, an auxiliary cam memberturnablymounted-onsaid boltmem ber, operatingmeans-zdepending fromsaidlowen part projecting intosaid slottherebyturning saidauxiliary cam,- a coin discharge opening'insaidlower deckplateadjacent an. end; of said slot, saidcam-members-whenzturnedto their re.-- sp'eotive low pointspermittingmovementof. saidlooking bar into'unlookingposition-thereby.set-- ting said timer. means:when.the.- upperand low-en parts of the:lever are; coupled. together. with. a coin, said cam members being-movedto thetimen setting position of. the: auxiliary,v cam by said lever andauxiliary came operating: dependingg means carried by*'the:lever-,.latch-.means.-:con nected to? said timer alsomovedbysaid-depend-- ing means latchingsaid auxiliarycam independ--ently of'ithe'primary camin apositio-n permitting said lockin bar-to. beretained-in. unlocking-en-- gagement' until said latchmeans is releasedthe meter." timer means after a predetermined period,.means carriedbysaid upper part of the coin lever returning:- the lever to coinreceivingposition as: a unit; comprising; a lug of a length substantiallyequaltothethickness-of the upperandl'ower parts of the? levermaintaining said parts'in. superimposed alignment upon'a returnrnoverruent ofsaidleverwith: the other of said cam membersindependently. of the auxiliary cam I member retained; in? a-latchedpositionbythe setting of the timer,- and. means: rotatable by "themetentimer means: releasing said latched earn from this position:and-returning; the lockingbar to locking position.-

2. In a coin control-led time'meter, actuating means controlling themovement of a locking bar and setting the metertimer-with each unlockingmovement of said lockingsbar,.comprising a compound coin receivinglever, said lever having overlapping 'upperand: lower. parts, a coinreceiving: opening. formed from said parts: when they are-in"superimposed alignment; said 1 upper part being movabledndependentlyofsaid lower part in one directionzexcept.-whensa coinis inserted in. saidcoimopening to: thereby couple them. together, a: first? camv on. the:end of. said lower part, a; second. cam:mounted coaxially withsaidpartsrliavingamintegral finger, a:third cam mounted coaxiailys belowsaid" second: cam having'a similar integraLfin'ger, a lug dependingfrom. said lower: part in engagement. with said fingers of said secondand third'cams;.a rocker arm having; a cam-.follower: engageable by saidfirst and; second: cams;..a-.pitman pivotally;v connectedt'crtheefreeEend-QLsaidarm, said-otherv end of said pitman beingconnected to said locking bar, whereby movement of said lever when its'parts are coupled together by a suitable coin timer, a catch on saidthird cam, a release lever having a pin thereon in'engagement with saidcatch, a catch on said second cam, a dog engaging said second cam catchand latching said second cam in a position permitting the locking bar toremain in unlocking position, said dog being releasable from the saidsecond cam catch after a predetermined period so that the second camsprings back to its original position, and a spring member connected tosaid locking bar urging said cam follower into yieldable engagement withsaid second cam in all positions thereof. I

3. In a coin controlled time meter, said meter controlling the positionof a locking bar, a coin receiving lever comprising two normallyseparate upper and lower parts, which overlap to form a coin receivingopening, whereby the said upper and lower parts are coupled together bya coin in said opening, a pivot member for said parts,

said lower part having a cam formed on one end,

a lug depending from said lower part, a second cam positioned below saidfirst cam and pivotally mounted on said pivot member, said second camhaving a finger extending into the path of said lug carried by the lowerpart of the lever, linkage means connecting said lock bar with said camsincluding a cam follower, resilient means retaining said follower inconstant engagement with at least one of said cams, during the barunlocking forward and return movement of said lever, said upper andlower parts of said lever being coupled together and moving to set themeter timer mechanism when a coin is inserted in said slot and beingcoupled during return movement by a lug on said upper part, a fingerhold on said lever manually aiding swinging the same in a directionsetting said timer mechanism, whereby said first and second cams areturned from the high points of their respective cam surfaces to theirlow points releasing said lock bar, timer mechanism setting meansincluding a third cam pivotally mounted below said second cam having afinger extending into the path of said lug on the lower part of thelever, said lug setting the meter timer and latching the second cam intolock bar unlocking position independently of said first cam so that thelever returns to said starting position after the coin is dropped, anauxiliary release lever moved by said third cam, and a dog retainingsaid second cam latched with the low point thereof in contact with thecam follower, said dog being engageable by said release lever anddisengageable from said second cam when said auxiliary lever is releasedby said third cam, whereby the said second cam returns to its originalposition.

4. In a coin controlled time meter for typewriters, means actuating alocking bar to unlocking and locking positions, including a coinreceiving lever formed of upper and lower parts overlapped to form acoin receiving opening, said lever being movable from coin receiving tocoin dropping position, a bolt on which said parts are pivoted, one ofsaid parts having a first cam on one end thereof, means depending fromsaid lower part .of the lever, a second cam mounted below said first cammoved with said first cam wave by said depending means to unlockedposition of the said bar, second means latching said second cam in saidunlocking position independently of the first cam which only retains thelocking bar in position until returned from coin dropping position,third means turning while setting the second cam with said lever windingthe meter timer, fourth means on the opposite side of said upper partfrom said first means on the lower part of the lever returning saidfirst cam to unlocking position independently of the second cam,andrelease means actuated by said third means releasing said second camafter a predetermined time interval permitting relocking the said lockbar.

5. In a coin controlled time meter for typewriters, means actuating alocking bar to unlocking and locking positions, including a coinreceiving lever formed of upper and lower parts overlapped to form acoin receiving opening, said lever being movable from coin receiving tocoin dropping position, a bolt on which said parts are pivoted, one ofsaid parts having a first cam on one end thereof, means depending fromsaid lower part of the lever, a second scam mounted below said first cammoved with said first cam by said depending means to unlocked positionof the said bar, means latching said second cam in said bar unlockingposition independently of the first cam, which movement of the coinlever with said first and second cams retains the locking bar in lockingposition-until the coin receiving lever is returned from coin droppingposition, a third cam means turned while setting the second cam in barunlocking position simultaneously with said lever Winding the metertimer, and a release means actuated by said third cam means releasingsaid second cam after a predetermined time interval allowing the returnof said locking bar to bar locking position independently of said firstcam.

6. In agcoin controlled typewriter time meter, means actuating a lockingbar to unlocking and locking positions, including a coin receiving lever{formed of upper and lower parts, said parts jointly forming a coinslot, a member on which said parts are pivoted adjacent one end of saidparts, a first cam on an end of one of said parts, means depending froma side of said lower part of said lever, a second cam pivotally mountedon said member moved with said first cam by said depending means tounlocked position of the said bar, a spring retaining said second cam inbar locking position, a finger extension carried by said second cam,said lever depending means engaging with said finger and moving saidsecond cam against the action of said spring when said upper and lowerparts are coupled together by a coin in said coin slot, said second camcooperating with said first cam to permit said locking bar to move tounlocking position after said first cam has returned to its originalposition, means latching said second cam against the action of saidspring in a position permitting said locking bar to remain in theunlocked position actuated by turning of said lever, means on a side ofthe upper part of the lever returning the upper and lower parts of thelever together with the first cam to bar unlocking position after thecoin is dropped independently of said second cams latched bar unlockingposition, timer winding means actuated with the turning of said secondcam to latched position, and release means actuated by said timerwinding means releasing said second cam after a predetermined timepermitting return of said locking bar to lockingposition.

'7. In a coin controlled time meter, a locking bar, actuating meanspermitting said bar to move to and from unlocking and locking positionsincluding a coin receiving lever formed of upper and lower partsoverlapped forming a coin receiving opening, a bolt on which said partsare pivoted from a coin receiving to a coin dropping position, meansdepending from said lower part, 1

a cam pivotally mounted on said bolt permitting moving of said lockingbar to unlocking position when the said upper and lower parts arecoupled together by a coin in said coin slot and turned on said bolttoward coin dropping position, said depending means turning said cam tobar unlocking position, means latching said cam in said bar unlockingposition independently of said coin lever parts, means turned by saiddepending means winding the meter timer, and re- "lease means actuatedby said last-named means releasing said cam after a predetermined timeinterval to locking position.

8. 'In a coin controlled time meter, a locking bar, means moving saidlocking bar into locking and unlocking positions comprising a compoundcoin receiving lever, said lever having overlapping upper and lowerparts, a coin receiving opening formed from said parts, when they are insuperimposed alignment, a bolt member for pivotally mounting said leverbetween a pair of spaced upper and lower 'deck plates, said upper partbeingmovable independently of said lower part in one direction exceptwhen a coin is inserted in said'jointly formed coin opening therebycouplingthem together for movement to timer setting position of themeter from coin receiving to coin dropping position on said bolt member,said lower plate having an arcuate slot therein, primary and secondaryca-m members turnably mounted on said bolt member cooperating tomomentarily hold the locking bar in clocking position on movement ofsaid lever with -bar, said secondary cam operating depending means fromsaid lower part of the lever setting said timer means "when the upperand lower parts of the lever are coupled together with a coin'andmoved'in timer setting direction between the deck plates, said cammembers being moved jointly to the timer setting position of the leverand independently to bar locking position, and latch means connected tosaid timer also moved by said .cam operating depending means latchingsaid secondary cam in a position permitting said locking bar to beretained in unlocking position by said resilient means until said latchmeans is released by the timer means after a predetermined period, saidprimary cam returning to bar unlocking position prior to the return ofthe latched secondary cam by the timer to bar locking position.

ROWE A. GAY.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 371,257 Everitt Oct. 11, 18871,197,757 Mulhall Sept. 12, 1916 2,325,244 Graham July 27, 1943

